6
Setup Instructions for Model 4320/4520
Power-Up Sequence:
1. Check to be sure the correct input line voltage has been selected on the rear panel, either 115 volts AC
or 230 volts AC. NOTE: The 4520 has an automatic input range selection.
2. Connect the power input plug into its socket on the rear panel of the tester.
3. Connect the male end of the plug to the outlet receptacle.
PLEASE BE SURE THAT THE SAFETY GROUND ON THE POWER LINE CORD IS NOT
DEFEATED AND THAT YOU ARE CONNECTING TO A GROUNDED POWER SOURCE.
ALSO, CONNECT THE REAR PANEL CHASSIS GROUND FOR ADDITIONAL SAFETY.
4. Connect the Interlock Disable key to the Remote Input connector on the back panel of the tester. This
is required in order to run a test. For more information on the interlock, see section 5.3: Remote
Interlock.
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